Spindle.



J.` B. NAINTEAU.

SPINDLE. APPLjcATmN" FILED AUG.5. igl.

Patente@ Feb. 4, 1919.

, UNTTED STATES PATENT OFFICE.

JOHN' 13. NAINTEAU, OF WOONSOCKET, RHODE ISLAND, ASSIGNOR TO UNITED STATES SPINDLE COMPANY, 0F WOONSOCKET, RHODE ISLAND, A CORPORATION 0F RHODE ISLAND.

SPINDLE.

Speciication of Letters Patent.

Patented Feb. 4., 1919.

Application led August 5, 1918. Serial No. 248,409.

To all who/1t it may concern:

Be it known that I, JOHN B. NArN'rnAU, a. citizen of United States, residing at Woonsocket, in the county of Providence, State of Rhode Island, have invented certain new and useful Improvementsin Spindles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to spindles and is particularly designed to overcome some of the defects which it has developed, are present in the specific structure set forth in U. S. Letters Patent No. 1,147,638, granted to me July 20, 1915. Iny that structure, the spindle is provided with a threaded enlargement .which screws through and inwardly beyond the upperend of the sleeve and serves to prevent lifting ofthe spindleY out of the bolster and sleeve when the bobbin is lifted from the whirl. This arrangement iseii'ective so long as the whirl turns in the direction ygiven the spindle when screwing its enlargement through the threaded reduced interior diameter of the upper end of the sleeve. When, however, the whirl and therewith the spindle is rotated in the opposite direction and in the lifting of the bobbin the spindle is raised,fthe threads of its enlargement will engage those of the sleeve n and the spindle will be'instantly moved upwardly out ofthe sleeve and bolster. It is to prevent this upward movement of the spindle that is an important object of this improved structure.v

VIn thepatented structure referred to, the bolster isV screwed into the sleeve, the adjusting screw for the spindle serving to am the bolster and hold it againstl adjustment in the sleeve. A further object of the present invention is to permit of adjustment of the spindle without adjustment of the bolster and atthe vsame time to support the bolster against dropping froml place when the coinvbined spindle and bolster retaining screw is backed out preparatory to moving the Spindler Y, y

Otherl objects of the invention include the substitution for the particular oil reservoir cap with its locking screwvof an improved structure wherein the cap gravitates to position to hold the oil ducts out of registration so that registration cannot be effected accidentally under influences incident to the operation of the mechanism.

ln the drawings g- Figure 1 is a vertical section through a portion of a spinning machine showing a spindle mounting embodying the present invention.

Fig. 2 is a plan view of the sleeve with its circumscribing oil cup, the threaded perforations for the spindle and bolster retaining screw being shown in'dotted lines.

Fig. V3 is a vertical longitudinal section through the sleeve and circumscribing oil cup in the plane of one of the oil feeding ducts and the threaded perforation that receives the retaining screw referred to.

Fig. f1 is a central vertical section through tpe cap in the plane of the oil introducing s ot.

Fig; 5 is a bottom plan view of the cap.

Fig. 6 isl an elevation of the bolster with its bore and ducts indicated in dotted lines.

Fig.v 7 is an elevation of the spindle adjusting screw. v

Fig. 8 is a plan view of the lock nut for the adjusting screw.

Fig'. 9 is a central longitudinal section through the nut in the plane of the Spanner receiving openings.

Referring now to the drawings, there is shown at 8 a portion of the spindle rail of a spinning machine in which there is illustrated, the sleeve 9, the lower portion of which is threaded to receive a lock nut 10 that holds the sleeve seated firmly down in the rail with its circumscribing oil cup 13 firmly upon the rail.

r1`he sleeve 9, which is hollow as illustrated, is internally threaded at its lower end as shown at 18 and directly thereabove is unthreaded as shown at 17. "Above the portion 17 the interior diameter of the sleeve is suddenly reduced as shown at 17 and this diameter is continued to near the upper end of thesleeve where it is sharply reduced to form the squared shoulder 18. Thereabove, the interior diameter is further reduced and the sleeve is provided with interior threads throughout the extent of this finally reduced portion as shown at 19. y

Disposed within the sleeve 9 and with` its upper end snug against the shoulder 18 is a bolster 29, the end portions of which snugly but slidably fit the portion 17 of the bore of the sleeve while the intermediate portion is of lesser diameter so that oil from the cup 13 passing through the ducts 20 may enter between the sleeve and bolster as will be hereinafter referred to.

The bolster 29 has a central bore which at the end portions is of equal diameter while for a portion of its length near the lower end of the bolster it is of reduced but constant diameter as shown at 36.

In connection with the structure thus described,there is employed a `bobbin spindle 1 having at a point spaced from both ends a circumscribing flange that is threaded, as shown at 60, and is proportioned to engage and screw through thethreaded portion 19 of the sleeve. For a portion of its length below the flange 60, the spindle is cylindrical as shown at 4 and in the lower part of this cylindrical portion is a circumscribing groove 61 which registers with a threaded passage 22 formed radially of the bottom wall of the oil cup and with a corresponding 'perforation 41 in the wall of the bolster.

spindle maynot rise to an extentto carry ythe threaded flange 60into contact with the upper end wall or rather the shoulder at the upper vend of the `portion 18 of the bore of the sleeve. Thus, if the spindle be rotating in a direction that would screw the flange 60 outwardly through the portion 19 of the sleeve bore, this Jcan not occur lbe cause the spindle can not rise to engage the thread of its flange with those of the part 19 of thesleeve bore.

The lowerportionof the spindle below the cylindrical part 4 is gradually tapered as shown at y3, to the extreme end portion which is taperedy sharply to the extremity withthe formation 'of-a cone 46. The apex ofthecone 46 rests uponthe end of the laxial extension146 of -a screw-plug 42 that is engaged in the threaded lowerl end' portion 18 ofthe -bore'of thefsleeve, this axial extension 46 being snugly but slidably fitted within the lowerendportion of the bore of theI bolster. i

Upon :the axial extension 46 Vof the plug l42, is disposed a helical spring 50 w-hichfsupports*4 the bolster when the screw 22V is removed to permit of withdrawal of the spindle, the spring holding the bolster against the vshoulder 18 with, sufficient friction to prevent accidental rotation of the bolster from alinement of its perforation 4l with the passage 22. A lock nut 47 is engaged upon the protruding end portion of the plug 42 and is provided with the usual radial spanner receiving perforations so that it may be set up against the lower end face of the sleeve with sullicient tightness to holdthe plug in place. When the jamb nut 47 is loosened the plug may be manipulated to adjust the spindle longitudinally in the bolster, the spring serving under such conditions to hold thebolster inposition.

The upperportion ofthe spindle is tapered from the flange 60 to its upper end and upon this portion of the spindle is removably disposedv a whirl 5 having upon its upper end the vradial fins 7 designed to removably engage the usual Ycorresponding radial slots in the lower end face of the bobbin. The lower end portion of the whirl forms a pulley 6, through the medium of which `the whirl is driven.

It is when the bobbin is lifted fromthe whirl and spindle that the spindle moves upwardly and engages the threads of its flange 60 with those of the part 19 of the boreof the sleeve. This is because of the tendency of the whirl to rise withthe spindle, due to the friction between the ns 7 `and the slots of the bobbin in which they engage which causes the whirl to move upwardly with the bobbin and further becausev of the frictional engagement of the upper taper of the spindle in the correspondingly tapered axial bore ofthe whirl.

vThe ducts or ports 32 in thev wall of the bolster permit ofpassage of oil to'the lower portion of they spindle from "between the bolster and'sleeve, v

A cap 26 of cflfuflrical form is `fitted snugly upon the ol cui 13 and has'a` central bore 28 that 'snugly receives the sleeve 9 atfits` upper portion, the cap having'a longitudinal slot 27 formed in its wall and terminating Vmay be Yinjected into the4 cup Yever thewall.

The slot 27 snugly but slidably receivesn the head 'of'theretaining screw 22 above 'ref ferred to so that the cap is `held againstrotation from a position 4 of accessibility `of' its slot.

As in my previous patent referredto,the

`flange 60 is designed primarily'I to intercept the `flow of oil upwardly of the spindle.

What is claimed is 1. The combination with a spindle, :of a housing includ-ing a .sleeve through one end of which the spindle projects, Ameans for 180 supplying oil to the portion of the spindle surrounded by the sleeve, means carried by the spindle for preventing a passage of oil up the spindle past the top of the sleeve and means for preventing movement of the spindle to carry said preventing means eX- teriorly of the sleeve.

2. The combination With a spindle having a cireumscribing groove, of a housing including a sleeve Within Which the grooved portion of the spindle is rotatably mounted and from Which the spindle projects, means for supplying oil to the spindle Within the sleeve, means carried by the spindle for preventing the passage of oil along the spindle and exterior to the sleeve and means carried by the sleeve and engaging the groove for holding the spindle against movement to carry said preventing means out of the 0 sleeve.

housing including a bolster receiving the spindle and a sleeve receiving the bolster, means for holding the spindle and bolster each against longitudinal movement from the sleeve and means for sustaining the bolster Within the sleeve when said holding means is removed.

4. The combination with a spindle, a housing including a sleeve in Which the spindle is received, the sleeve carrying an oil cup for lubricating the spindle, of means for holding the spindle against longitudinal movement from the sleeve and a cap for the oil cup having a longitudinal slot through its Wall terminating short of the top of the cup and receiving the spindle holding means to prevent rotary displacement of the cap with respect to the cup.

In testimony whereof, I aiix my signature.

JOHN B. NAINTEAU.

Copies of this patent may be obtained for ave cents each, by addressing the Comminioner of Patents, Washington, D. c. 

